Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Grand Junction CO
155 AM MST Thu Nov 20 2025
COZ001>014-017>023-UTZ022>025-027>029-210900-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
155 AM MST Thu Nov 20 2025
This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.
.DAY ONE...Today and tonight.
Accumulating snowfall is likely, mainly for the San Juans today
shifting into the central and northern mountains tonight. Expect a
few isolated thundershowers generally south of I-70 through the
afternoon with lightning and gusty winds the primary threats.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Light accumulating snowfall is likely, mainly for central and
northern Colorado mountains Friday. The San Juan Mountains could see
another round of light snow showers Sunday into early next week with
little if any impacts.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected today or tonight, however
spotters are encouraged to report snowfall amounts to the
National Weather Service in Grand Junction.
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
302 PM MST Thu Nov 20 2025
NEZ002-003-019>021-054-055-095-096-WYZ101>119-212215-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
302 PM MST Thu Nov 20 2025
This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.
.DAY ONE...THIS AFTERNOON AND TONIGHT
A low pressure system will deliver a mix of rain and snow for the
region starting tonight and continuing through Friday night. Due
to high model variability there is uncertainity for how much snow
will accumulate along the I-80 corridor. Accumulations of 1-2
inches in the higher elevations should be expected. East of I-25
accumulations up to an inch is possible through Friday morning.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
A colder airmass could arrive as early as Tuesday, dropping high
temperatures into the 20`s and 30`s for the remainder of the week.
.Spotter information statement...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1101 AM MST Thu Nov 20 2025
COZ030>051-211815-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1101 AM MST Thu Nov 20 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
A storm system will move into Colorado bringing rain and snow to
the region later today through Friday morning. Rain amounts
exceeding a half inch will be possible over the northeast plains
with lighter amounts for the urban corridor. The mountains will
see light snowfall, up to 4 or 5 inches, with the highest amounts
occurring in the Front Range Mountains. The foothills and Palmer
Divide will see a mixture of rain and snow with the higher
foothills seeing light snow amounts.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Another weather disturbance will move into the area late Sunday,
bringing another chance of rain for lower elevations and snow to
high country Sunday night into Monday. Generally minor travel
impacts will be possible in the mountains.
Another round of snow and potential pre-Thanksgiving travel
impacts will be possible in the mountains toward Tuesday and
Wednesday. It will also turn colder with a chance of light snow
moving into the plains by the middle of next week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Pueblo CO
447 AM MST Thu Nov 20 2025
COZ058>089-093>099-211200-
Western Mosquito Range/East Lake County Above 11000 Feet-
Leadville Vicinity/Lake County Below 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
Western Chaffee County Between 9000 and 11000 Feet-
Central Chaffee County Below 9000 Feet-
Western Mosquito Range/East Chaffee County Above 9000 Feet-
Saguache County West of Continental Divide Below 10000 Feet-
Saguache County East of Continental Divide Below 10000 Feet-
La Garita Mountains Above 10000 Feet-
Upper Rio Grande Valley/Eastern San Juan Mountains Below
10000 Feet-Eastern San Juan Mountains Above 10000 Feet-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Feet-
Alamosa Vicinity/Central San Luis Valley Below 8500 Feet-
Southern San Luis Valley-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
Northwestern Fremont County Above 8500 Feet-
Western/Central Fremont County Below 8500 Feet-
Wet Mountain Valley Below 8500 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-Pikes Peak Above 11000 Feet-
Canon City Vicinity/Eastern Fremont County-
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Feet-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-Pueblo Vicinity/Pueblo County Below 6300 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
Crowley County-La Junta Vicinity/Otero County-
Eastern Las Animas County-Western Kiowa County-
Eastern Kiowa County-Las Animas Vicinity/Bent County-
Lamar Vicinity/Prowers County-Springfield Vicinity/Baca County-
447 AM MST Thu Nov 20 2025
This hazardous weather outlook is for portions of central...east
central...south central and southeast Colorado.
.DAY ONE...Today and Tonight
A Pacific weather system will bring snow to the higher elevations
of the mountains today. Accumulating snow is likely, mainly above
10000 feet during the day, decreasing to around 7500 feet
tonight. Some thunder will be possible in the San Juan mountain
region this afternoon. Accumulations of 4 to 8 inches of snow will
be possible, mainly above 10000 feet.
Some snow flakes will be possible across northern El Paso county
tonight. Any light accumulations will be mainly on grassy
surfaces.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Some snow showers may linger over the higher elevations of the
Pikes Peak region early Friday morning.
Another Pacific weather system will have the potential to bring
more snow to all of the mountains across southern and southeast
Colorado starting on Sunday and lasting into Monday. Some snow may
also occur over northern El Paso county Sunday night.
Colder weather will move into the region for the Thanksgiving time
period. Although it is expected to be mainly dry, some periods of
snow will be possible across the central mountains Wednesday.
.SPOTTER INFORMATION STATEMENT...
Weather conditions that meet reporting criteria for spotters will
be likely over portions of the region.
$$
Hodanish
Hazardous Weather Outlook
National Weather Service Riverton WY
314 AM MST Thu Nov 20 2025
WYZ001>020-022>030-211415-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
314 AM MST Thu Nov 20 2025
...Special Weather Statement Due to Patchy Areas of Fog Has Been
Posted for Portions of Western, Southern, and Central WY to 10 AM
Thursday...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and tonight.
Patchy areas of fog with visibilities less than one mile have begun
to develop across portions of western, southern, and central WY this
morning. Fog will likely linger through the morning gradually
dissipating by the late morning hours. Isolated showers will be
possible this morning mainly over western and southern WY.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday... Near seasonable temperatures with scattered showers
possible across portions of western and southern WY.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
